Title :
Magnetic reversal field map combined with medium noise image in perpendicular recording media
Author :
Ishio, Shunji ; Bai, J. ; Saito, II
Author_Institution :
Dept. of Mater. Sci. & Eng., Akita Univ., Japan
Abstract :
In this paper, magnetic reversal field map combined with medium noise image is proposed to analyze the origin of medium noise in perpendicular recording media. The magnetization reversal field map and medium noise have been studied at the same position in CoCrPt granular recording media. The magnetic reversal field map combined with medium noise image shows that the distortion of bit boundary and magnetization reversal in bit are strongly related to a low reversal field (Hr) area in media.
Keywords :
magnetic force microscopy; magnetic recording noise; magnetisation reversal; perpendicular magnetic anisotropy; perpendicular magnetic recording; CoCrPt; granular recording media; magnetic reversal field map; magnetization reversal; medium noise image; perpendicular recording media; Fluctuations; Grain size; Magnetic films; Magnetic force microscopy; Magnetic noise; Magnetic properties; Magnetic separation; Magnetization reversal; Perpendicular magnetic recording; Saturation magnetization;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1464112
